Publication result detail

Modeling of microfocused Brillouin light scattering spectra

WOJEWODA, O.; HRTOŇ, M.; URBÁNEK, M.

Original Title

Modeling of microfocused Brillouin light scattering spectra

English Title

Modeling of microfocused Brillouin light scattering spectra

Type

WoS Article

Original Abstract

Although micro-focused Brillouin light scattering (BLS) has been used for more than 20 years, it lacks a complete theoretical description. This complicates the analysis of experimental data and significantly limits the information that can be obtained. To fill this knowledge gap, we have developed a semi-analytical model based on the mesoscopic continuous medium approach. The model consists of the following steps: calculation of the incident electric field and the dynamic susceptibility, calculation of the induced polarization, and calculation of the emitted electric field and its propagation towards the detector. We demonstrate the model on the examples of the measurements of thermal and coherently excited spin waves. However, the used approach is general and can describe any micro-focused Brillouin light scattering experiment. The model can also bring new analytical approaches to mechanobiology experiments or to characterization of acoustic wave-based devices.

English abstract

Although micro-focused Brillouin light scattering (BLS) has been used for more than 20 years, it lacks a complete theoretical description. This complicates the analysis of experimental data and significantly limits the information that can be obtained. To fill this knowledge gap, we have developed a semi-analytical model based on the mesoscopic continuous medium approach. The model consists of the following steps: calculation of the incident electric field and the dynamic susceptibility, calculation of the induced polarization, and calculation of the emitted electric field and its propagation towards the detector. We demonstrate the model on the examples of the measurements of thermal and coherently excited spin waves. However, the used approach is general and can describe any micro-focused Brillouin light scattering experiment. The model can also bring new analytical approaches to mechanobiology experiments or to characterization of acoustic wave-based devices.

Keywords

ELECTROMAGNETIC DIFFRACTION; OPTICAL SYSTEMS; INTENSITIES; SURFACE; FILMS

Key words in English

ELECTROMAGNETIC DIFFRACTION; OPTICAL SYSTEMS; INTENSITIES; SURFACE; FILMS

Authors

WOJEWODA, O.; HRTOŇ, M.; URBÁNEK, M.

RIV year

2025

Released

20.12.2024

Publisher

AMER PHYSICAL SOC

Location

COLLEGE PK

ISBN

2469-9969

Periodical

Physical Review B

Volume

110

Number

22

State

United States of America

Pages count

12

URL

https://journals.aps.org/prb/abstract/10.1103/PhysRevB.110.224428

Full text in the Digital Library

http://hdl.handle.net/11012/251594

BibTex

@article{BUT196438,
  author="Ondřej {Wojewoda} and Martin {Hrtoň} and Michal {Urbánek}",
  title="Modeling of microfocused Brillouin light scattering spectra",
  journal="Physical Review B",
  year="2024",
  volume="110",
  number="22",
  pages="12",
  doi="10.1103/PhysRevB.110.224428",
  issn="2469-9950",
  url="https://journals.aps.org/prb/abstract/10.1103/PhysRevB.110.224428"
}

Documents

PhysRevB.110.224428